Agency requirements, Preparation – LiftMaster LM21AFCB Advance Fire Control Release Device User Manual
Page 3

I N T R O D U C T I O N
3
AGENCY REQUIREMENTS
Installation and testing to factory specifications shall be
performed by factory authorized personnel for proper operation in
accordance with the latest National Fire Protection Association
(NFPA), Underwriters Laboratories (UL), National Electrical Code
(NEC), local, state, county, district and/or other applicable
building and fire standards, guidelines, regulations and codes
including, but not limited to, all appendices and amendments and
the requirements of the local authority having jurisdiction (AHJ).
SPECIFICATIONS
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT install this device on a motorized door without an
electric safety edge.
• DO NOT use this device without fuse links installed.
• Test every 90 days to assure proper operation of release
device.
ATTENTION
AVERTISSEMENT
AVERTISSEMENT
AVERTISSEMENT
WARNING
WARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN
ADVERTENCIA
ADVERTENCIA
ADVERTENCIA
VOLTAGE RATING:
120Vac, 60Hz
STANDBY CURRENT:
.20A
ALARM CURRENT:
.25A
BATTERY RATING:
12V 4.5AH Sealed Lead Acid
Batteries (2), Maximum charge
current .150Amps
BATTERY STANDBY TIME: LM21AFCB, 48 hours
LM21AFCBVB, 36 hours
INITIATING DEVICE:
Maximum line impedance 20 ohm;
Maximum current not to exceed
.010A.; Maximum voltage 24Vdc
LOAD RATING:
Support and Release 40 lbs. Max.
PHYSICAL DIMENSIONS:
10" x 10" x 5" (h x w x d)
PREPARATION
It is imperative that the wall or mounting surface provide
adequate support for the release device.
Refer to the door manufacturer’s recommendations for use of this
product with specific door being utilized. Use only hardware
approved or recognized by the appropriate testing and listing
agencies in conjunction with the installation of this product.
Additional items may be required to complete the installation:
• Concrete anchors or fasteners
• Sash chain or 1/16 cable
• Eyebolts-hook
• Fuse links
• Turnbuckles
• Smoke detectors (up to 4 may be installed with this device)
Refer to NFPA 72 and NFPA 80 for instructions concerning proper
placement and detection coverage. End-of-line devices shall be
installed for supervision of electrical power to 4-wire smoke
detector. When using 4-wire smoke detectors with this device,
electrical supervision must be provided by means of a UL/ULC
listed end-of-line relay.
ELECTRICAL SPECIFICATIONS
MECHANICAL SPECIFICATIONS
FUSES:
2A @ 250V, 2AG Slo-Blo Type
MOTOR CONTROL SENSE: Input Voltage 24Vac/dc
Typical +15% / –10%;
Input Current not to exceed .004A
AUXILIARY POWER:
24Vdc @ .75A Maximum
COMMON ALARM RELAY:
.
5A 125Vac 60Hz
(MAX. CONTACT RATING)
1A 24Vdc Resistive
WEIGHT:
Approximately 18 lbs.
(INCLUDING BATTERIES)
Electric Safety Edge
(Motorized
Doors
Only)
Smoke
Detector
Release
Device
Turnbuckle
Annunciator
Test/Reset
Switch
Fire Door
Chain
End Link
Fuse Links
Eyebolt